head to head · open source
Memos vs zotero-AI-Butler
Memos has 63,454 GitHub stars, 4,799 forks, 67 open issues and last shipped 3 days ago. zotero-AI-Butler has 1,768 stars, 98 forks, 17 open issues and last shipped 3 days ago. Memos leads on adoption by 3,489% (63,454 vs 1,768 stars). Memos is written in Go under MIT; zotero-AI-Butler is written in TypeScript under AGPL-3.0. Memos has attracted 8% as many forks as stars, zotero-AI-Butler 6%. zotero-AI-Butler was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (markdown), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Memos | zotero-AI-Butler | |
|---|---|---|
| GitHub stars | ★ 63K | ★ 1.8K |
| License | MIT | AGPL-3.0 |
| Written in | Go | TypeScript |
| Last push | 2026-09-28 | 2026-09-28 |
| Forks | ⑂ 4.8K | ⑂ 98 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Memos if
- You weight community size — 63K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick zotero-AI-Butler if
- You want the zotero-AI-Butler feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and zotero-AI-Butler fits your workflow better
About Memos
Memos is an open source, self hosted note taking tool designed for rapid capture of short form content like daily logs, links, code snippets, and microblog style entries. It lives in the Go ecosystem and uses a Markdown native, timeline based interface. Unlike traditional note apps that enforce folders or rigid templates, Memos prioritizes speed and simplicity: users write in Markdown, attach media, and save without selecting titles or locations.
read the full Memos overview →
About zotero-AI-Butler
zotero AI Butler is a free, open source Zotero plugin written in TypeScript and licensed under AGPL 3.0 that calls large language models to read the PDFs already sitting in a Zotero library and writes the results back as native Zotero notes, built for researchers, students, and anyone whose "read later" pile has outgrown their reading time.
read the full zotero-AI-Butler overview →
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Frequently asked questions
Is Memos or zotero-AI-Butler more popular?
Memos has 63,454 GitHub stars and zotero-AI-Butler has 1,768. Memos has the larger community by that measure.
Are Memos and zotero-AI-Butler free?
Both are open source. Memos is licensed under MIT and zotero-AI-Butler under AGPL-3.0. Neither carries a licence fee.
What is the difference between Memos and zotero-AI-Butler?
Memos is written in Go and zotero-AI-Butler in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Memos or zotero-AI-Butler?
Choose Memos if you want the larger community (63,454 stars) or its MIT licence terms. Choose zotero-AI-Butler if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.